I have on my memory stick a excel document which was created on a windows xp computer. I'm currently editing the document in windows vista excel 2007. Once finished will i be able to go back to this document and edit on the xp computer?

Many thanks in advance

as long as it has the excel 2007 on it.

Yes, you can edit it on the xp computer. Just make sure you save the document with the same excel version as the one you created it with.

Hi u don have to worry about this,All u need to do is when u save this file ensure u follow this step.
click on the office excel button on the top left then click on the option that says save as then click on the 4 th option i.e save workbook compatible with previous versions (97-03).simple